NWT Everlane - The Bikini Bottom Size: Small Color: Beech (Olive Green) I also have the matching bikini top size XS available for sale in my closet. ----------- Designed for you—and the planet. The Bikini Bottom features a classic bikini cut, and moderate bum coverage. Plus, it’s made of fully lined Italian fabric with technical quick-drying and fade-resistant properties, which makes it versatile enough for every summer activity. Even better? This style was fit-tested on 112 different women to ensure that it feels comfortable, looks flattering, and stays put—no matter how you move. Like everything in our swim collection, this suit is comprised of 82% regenerated nylon derived from recycled plastic.